Chemistry, 21.08.2019 17:30 chubnastii

Which of the following is always valid? choose only one answer.
1. w = - p ∫ dv, for the calculation of work in a mechanically-reversible piston-cylinder arrangement
2. for any fluid undergoing a change in pressure, cp = dh/dt.
3. δh = δu + δ(pv)
4. δu = q + w
5. δh = δu + p.δv

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Which of the following is always valid? choose only one answer.
1. w = - p ∫ dv, for the calc...